Improvement in rocking-chairs



M. SCHRENKEISEN.

nomma-CHAIR.. No. 177,754. Patented May 23,1876.

ATTRlIEYS.

aspecication: Y y The tigure'is a vertical section of a rockingchan' `to which my improvement has been ap# Vand thus make it more c UNITED. STATES PATENT OFFICE l,MARTIN soHEENKEIsEN, 0E 4NEW YORK, N.,Y.

l IMPROVEMENT lNIhROCKING-CHAIRS.

Specification forming part of Letters Patent No. 177,754, dated May 23, 1876; application filed To all whom it may concern:

Be it known that .L MARTIN vSCHRENKEI- SEN, ofthe city, county, and State of New York, have invented a n ew and useful Improvement in Rocking-Chairs, of which Vthe, following' is plied...

The object of-this invention is to improve the construction of the rockingchair for which Letters Patent No. 156,127 were issued-to` Charles Brada, Qctober 2Q, '1874,' to counteract the tendencyofsaidehair to lean forward,

fortable in use.

The invention consistsin the combination;

of the second or rearA set of springs with the forward set of springs, the arms, the chair,

and the pedestal, as `hereinafter fullydescribed. 'i j A represents thebody of thechair, the lower edges otf the side frames of which arerouuded oit' like rockers, and rest and rock upon the upper edges of the side frames of the pedestal B. `To the inner side of the upper part ofthe side frames of the pedestal Bare' attached 'arms C, which projectupward, and have outl wardly-projectin g pins formed upongtheir upper ends, whichenterV-slots inthe iron plates D, attached to the inner -sides of Vthe lower parts or rockcrsof the chair A.

` To studs formed upon the inner sides ofthelower parts of` the Varms C are' attached theV ends of coiled'` springs E, the other ends of which project forward, and are'connected with nvenient, and c'onr` longs to me.

` February 21, 1876.

.endsof a second set ot springs, F, which are coiled in the opposite direction from the springs E, and their other ends project to the rearward, and are connected with the rear parts of the `chair A, as shown in the figure.

By this construction the springs F resist the tendency ot' the cha-ir A to be drawn forward by the springs E, and keep it in proper position. strength as not to 'interfere' with the easy movement 4of the chairwhen in use.`

This 'im-'entionis intended as an improvement upon the above-cited patent, which be- In the chairs made under theBrada patent, the spring `draws them forward, so that the seatloses its true position, while the pedestal slips. These objections are entirely remedied by the counterbalance-springs which I have placed in the rear, hence, I

VWhat I claim is The rear springs F, arranged `on a chair to counterbalance .the front springs E, the two sets of springs being'coiled in opposite directions, as shown and described.

MARTIN SCHRENKEISEN.

The springs E F are made of such a. 

